ISSN:
0044-2313
Keywords:
Polyolato-copper complexes
;
Deprotonated anhydro-erythritol, glycerol
;
Oxolandiolate, propantriolate complexes
;
Crystal structures
;
Chemistry
;
Inorganic Chemistry
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Description / Table of Contents:
Polyol Metal Complexes. III. Lithium Bis(oxolanediolato)cuprate Tetrahydrate and Lithium μ-Propanetriolatocuprate Hexahydrate - Two Homoleptic Copper(II) Complexes with Polyolate Ligands Derived from the Multiply Deprotonated Polyols Anhydro-erythritol and Glycerol.In the blue-violet crystals of lithium bis{meso-oxolane-3, 4-diolato(2 - )}cuprate tetrahydrate, Li2[Cu(C4H6O3)2] · 4H2O (1) (P21/c, a = 706.2(4), b = 1114.0(6), c = 958.3(5) pm, β = 107.67(3)°, Z = 2, Rw = 0.022), square-planar coordinated copper(II) ions are bound to twofold deprotonated anhydro-erythrol ligands (Cu—O 194.36(17) and 191.83(17) pm). The oxygen ligator atoms of the mononuclear cuprate ions are bound to lithium ions or they are acceptors in asymmetrical hydrogen bonds. Trinuclear tris-{μ-propanetriolato(3 - )}tricuprate ions with triply deprotonated glycerol as ligands are present in the deep blue columns of LiCuC3H5O3 · 6H2O (2) (P3c1, a = 1 278.8(6), c = 2 420.5(12) pm, Z = 12, Rw = 0.059), which has been prepared for the first time by Bullnheimer [2]. The copper(II) ions in 2 are also bound to alkoxide oxygen atoms in square-planar coordination (Cu—O 190.7(7) and 192.4(8), Cu—μ-O 196.6(6) and 195.0(7) pm). The hydrogen bond system and the content of channels parallel [001] are described in terms of a disorder model.
Notes:
In den blauvioletten Kristallen von Lithium-bis{meso-oxolan-3,4-diolato(2 - )}cuprat-Tetrahydrat, Li2[Cu(C4H6O3)2] · 4 H2O (1) P21/c, a = 706,2(4), b = 1 114,0(6), c = 958,3(5) pm, β = 107,67(3)°, Z = 2, Rw = 0,022), liegen quadratisch-planar von doppelt deprotonierten Anhydroerythrit-Liganden koordinierte Kupfer(II)-Ionen vor (Cu—O 194,36(17) und 191,83(17) pm). Die O-Ligatoratome der einkernigen Cuprationen sind an Li-Ionen gebunden oder sie sind Akzeptoren in asymmetrischen Wasserstoffbindungen. Dreikernige Tris-(μ-propantriolato(3 - )-tricuprat-Ionen mit dreifach deprotoniertem Glycerol als Ligand liegen in den von Bullnheimer [2] erstmals beschriebenen, tiefblauen Säulen von LiCuC3H5O3 · 6 H2O (2) vor (P 3c1, a = 1 278,8(6), c = 2 420,5(12) pm, Z = 12, Rw = 0,059). Kupfer(II)-Ionen sind auch in 2 quadratisch-planar von Alkoxid-O-Atomen umgeben (Cu—O 190,7(7) und 192,4(8), Cu—μ-O 196,6(6) und 195,0(7) pm). Das H-Bindungssystem und der Inhalt von Kanälen in [001] werden mit einem Fehlordnungsmodell beschrieben.
Additional Material:
4 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/zaac.19936190407
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